It depends on what version of a Sport it is - some have Harken traveller tracks that must be replaced. However, the basic list is:

BoomMast rotation arm and control lineForestay, bridles

There are some additional things you'll want for racing:

6:1 downhaul, with cleats on both sides of the mast, led out to the wings.Deep profile traveller track and new, brass-wheeled car (old tracks eat old cars for breakfast)Positive mast rotation control.7:1 mainsheet system (extra bale on boom; single block on ratchet block becket)

It's a '97 model, it that helps. Matt, you're talking Main traveler track? I liked how the Harken track on the 20 operated

Yes, main traveler. The problem with the Harken traveler on the 17 (other than it not being class legal for racing) is that it moves when you sheet in. You pull on the sheet, and there's so little friction in the traveler car, all you do is pull the car towards you instead of the sheet through the blocks.

17 SPORT TO 17SE CONVERSION Have a Sport 17 and want to race? This kit includes all parts needed to convert a 1995 or newer 17 SPORT to the race SE version. Included are the boom, gooseneck fittings, mast rotation parts and forestay assembly. Older Sports equipped with HARKEN main traveler track may need to convert to the class legal “Tracker” traveler system (not included). Pre '95 Sports require purchase of new main sail.

It's a '97 model, it that helps. Matt, you're talking Main traveler track? I liked how the Harken track on the 20 operated

Yes, main traveler. The problem with the Harken traveler on the 17 (other than it not being class legal for racing) is that it moves when you sheet in. You pull on the sheet, and there's so little friction in the traveler car, all you do is pull the car towards you instead of the sheet through the blocks.

The 17 likes a lot of sheet tension in heavier air.

Are you talking when the traveller is centered, or when travelled out? If its when its centered just throw a split tail traveller line on it.

This is a very interesting thread. I am planning on racing a 17sport that I got from my father next year. I just figured I would run it without the jib, but it looks like a lot more is involved. Is there a difference if it is a portsmith class?